mitosis

• What are chromosomes?


  A structure inside the nucleus containing genetic information.
• What is the cell cycle?


  A cycle where the body cells in multi-cellular organisms divide to produce new cells.
• What are stages in the cell cycle?


  1. Growth and DNA replication
  2. Mitosis
• What is included in the 'growth and DNA replication' stage?


  1. DNA is spread out into long strings
  2. The cell grows and the cells subcellular structures increase. Such as mitochondria and ribosomes.
  3. The DNA duplicates so there is one copy for each cell.
• What are the steps of mitosis?


  • Prophase
  • Metaphase
  • Anaphase
  • Telophase
• What happens during prophase?


  The DNA in the chromosomes condense ( making them more visible ) . And the membrane around the nucleus disappears.
• What happens during Metaphase?


  The chromosomes and their copies line up in the middle of the cell.
• What happens during Anaphase?


  Chromosomes and their copies being pulled to different ends of the cell.
• What happens during Telophase?


  New membranes form around the chromosomes at each end of the cell.